Moves large items quicker using the VXB20082ALB. And rolling on wheel that has 82mm diameter/3.228" inch. Dimensions of the caster wheel is 82mm (3.228" inch). The caster dimensions heightwise is 48mm/1.890" inch. This wheel caster can be mounted using a Top Plate with the dimensions of 47 and holes distance of 129mm x 74mm. This caster wheel core material is Zinc Alloy and Acrylonitrile Butadiene Styrene (Plastic) and has a Zinc Alloy and Acrylonitrile Butadiene Styrene (Plastic) tire spinning over Roller bearing. Each caster will carry the load of 99 lb and is Swivel and Upper Brake type. Temperature range is -40 to 180 F. Very important notice, you need to buy the VXB20082ALB in order to get one :).